Table 3.

Percentile value for serum PSA levels according to age groups.

Age (year)	Men, n	Serum PSA level (ng/mL) percentile value
		2.5th	5th	10th	25th	50tha	75th	90th	95th	97.5th
60–64	280	0.00	0.00	0.00	0.43	0.90	1.87	3.79	4.89	6.19
65–69	163	0.00	0.00	0.03	0.55	1.10	2.00	3.47	4.88	6.16
70–74	150	0.00	0.00	0.00	0.31	0.93	2.35	3.87	9.01	14.25
75–79	138	0.00	0.00	0.00	0.38	1.30	2.69	5.15	7.95	12.08
80–84	64	0.00	0.00	0.05	0.81	1.90	3.06	7.06	11.98	19.74
85+	42	0.00	0.00	0.01	0.5	1.45	2.92	5.23	33.17	40.29
Total	837	0.00	0.00	0.00	0.49	1.01	2.20	4.16	5.98	11.06

PSA, prostate-specific antigen.

^aMedian of data.